When you ask someone to switch off the light. Opposite to opening the light.
Honey I'm going to bed, can you close the light?
by Yana A September 27, 2006
When someone is just not thinking and says, "Could you close the light?" When, as everyone knows, no one can close a light.
Dude, could you close the light?
by 48967927634mvyeriyt September 06, 2009